Question 1in the first law of thermodynamics, , what does q stand for? the internal energy of the systemthe work done by the pistonthe change in the internal energy of the systemthe heat added to the systemquestion 2if the thermal energy of the system increases by 400 j, and 1,100 j of heat were added to the system, how much work did the system do? 400 j700 j1,500 j1,100 j

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.